The aim of the study was to investigate the incidence of comorbidities and performed surgical procedures in the group of patients with different stages of chronic kidney diseases (CKD). 1183 patients aged between 17 and 98 years with creatinine level > 120 micromol/I and/or creatinine clearance < 90 ml/min/1.73m2 were analyzed. In the studied group 31.3% of patients had diagnosed ischaemic heart disease, 25.2% diabetes, 64.5% arterial hypertension, 10.6% overcome myocardial infarction, 6.7% atrial fibrillation, 9.8% cardiac failure, 7.7% urolithiasis, 26.6% obesity (BMI > 30) and 10.6% were post nephrectomy. Patients with performed surgical procedures in the past constituted 22.8%. With the usage of statistical analysis, we attempted to find connections between GFR calculated based on the abbreviated MDRD formula, Cockcroft-Gault formula and 24h urine collection and potential risk factors for every method separately; later noted correlations were evaluated. Statistically significant correlations were found between GFR and BMI, occurence of atrial fibrillation, myocardial infarction, chronic cardiac failure, urolithiasis, ischaemic heart disease, obesity, female sex, previous coronary artery bypass graft, hypertension and previous surgical procedures.
Conclusions: 1. Comorbidities are frequent in patients with CKD and 22.8% of them had performed in the past one or more surgical procedures. 2. There is a relationship between GFR values and cardiovascular complications.